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All results from a given calculation for P(CH3)3 (trimethylphosphine)

using model chemistry: MP2=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-459.826486
Energy at 298.15K-459.836041
HF Energy-459.477539
Nuclear repulsion energy172.328702
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3159 3001 40.56      
2 A1 3059 2906 25.84      
3 A1 1548 1471 11.09      
4 A1 1422 1351 2.76      
5 A1 1026 975 46.06      
6 A1 616 585 0.53      
7 A1 270 257 0.32      
8 A2 3176 3018 0.00      
9 A2 1526 1450 0.00      
10 A2 864 821 0.00      
11 A2 155 147 0.00      
12 E 3177 3018 15.53      
12 E 3177 3018 15.53      
13 E 3158 3001 5.03      
13 E 3158 3001 5.03      
14 E 3062 2909 18.30      
14 E 3062 2909 18.30      
15 E 1541 1464 11.25      
15 E 1541 1464 11.25      
16 E 1532 1455 6.53      
16 E 1532 1455 6.53      
17 E 1396 1327 2.94      
17 E 1396 1327 2.94      
18 E 1019 968 21.78      
18 E 1019 968 21.78      
19 E 904 859 0.11      
19 E 904 859 0.11      
20 E 681 647 8.04      
20 E 681 647 8.04      
21 E 236 224 0.12      
21 E 236 224 0.12      
22 E 185 176 0.00      
22 E 185 176 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25300.3 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 24037.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G
ABC
0.18090 0.18090 0.11611

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.624
C2 0.000 1.686 -0.291
C3 1.460 -0.843 -0.291
C4 -1.460 -0.843 -0.291
H5 0.000 1.554 -1.382
H6 -0.891 2.255 0.004
H7 0.891 2.255 0.004
H8 1.345 -0.777 -1.382
H9 2.398 -0.356 0.004
H10 1.507 -1.899 0.004
H11 -1.345 -0.777 -1.382
H12 -1.507 -1.899 0.004
H13 -2.398 -0.356 0.004

Atom - Atom Distances (Å)
  P1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
P11.91841.91841.91842.53752.50242.50242.53752.50242.50242.53752.50242.5024
C21.91842.92052.92051.09931.09701.09703.01123.16343.90003.01123.90003.1634
C31.91842.92052.92053.01123.90003.16341.09931.09701.09703.01123.16343.9000
C41.91842.92052.92053.01123.16343.90003.01123.90003.16341.09931.09701.0970
H52.53751.09933.01123.01121.79041.79042.69093.36414.01392.69094.01393.3641
H62.50241.09703.90003.16341.79041.78164.01394.19894.79603.36414.19893.0143
H72.50241.09703.16343.90001.79041.78163.36413.01434.19894.01394.79604.1989
H82.53753.01121.09933.01122.69094.01393.36411.79041.79042.69093.36414.0139
H92.50243.16341.09703.90003.36414.19893.01431.79041.78164.01394.19894.7960
H102.50243.90001.09703.16344.01394.79604.19891.79041.78163.36413.01434.1989
H112.53753.01123.01121.09932.69093.36414.01392.69094.01393.36411.79041.7904
H122.50243.90003.16341.09704.01394.19894.79603.36414.19893.01431.79041.7816
H132.50243.16343.90001.09703.36413.01434.19894.01394.79604.19891.79041.7816

picture of trimethylphosphine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 C2 H5 111.558 P1 C2 H6 109.112
P1 C2 H7 109.112 P1 C3 H8 111.558
P1 C3 H9 109.112 P1 C3 H10 109.112
P1 C4 H11 111.558 P1 C4 H12 109.112
P1 C4 H13 109.112 C2 P1 C3 99.137
C2 P1 C4 99.137 C3 P1 C4 99.137
H5 C2 H6 109.210 H5 C2 H7 109.210
H6 C2 H7 108.589 H8 C3 H9 109.210
H8 C3 H10 109.210 H9 C3 H10 108.589
H11 C4 H12 109.210 H11 C4 H13 109.210
H12 C4 H13 108.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability